Smithsonian Contributions to Paleobiology: Recent submissions

The sixth and final part of a monograph of Permian strata and faunas of West Texas and adjacent parts of New Mexico, this volume consists primarily of faunal lists and a taxonomic index of the previous five parts. A list ...

The third of a six-part monograph on the Permian brachiopods of the Glass, Guadalupe and other mountain ranges of West Texas, this volume contains systematic descriptions of genera and species in the suborders Productidina ...

"Problematic bedding-plane markings" discovered by the late R.J. Horodyski from the Appekunny Formation in Glacier National Park, Montana, and dated at approximately 1.5 giga-annum (Ga), were never formally named. We are ...

Ten synapomorphies are described that support the proposed sister group relationship of the Eocene Kushlukiidae and the Eocene to Recent Luvaridae as the superfamilial clade Luvaroidea at the node between the siganid and ...

Biometric analyses of well-localized specimens of the trilobite <I>Dikelocephalus</I> from the St. Lawrence Formation (Upper Cambrian), northern Mississippi Valley, suggest that all specimens belong to a single, highly ...

New fossils of the pinnipediform <I>Pteronarctos</I> from the Miocene Astoria Formation of coastal Oregon provide more information on the cranial anatomy, interrelationships, and higher level phylogeny of this taxon. ...

<I>Climactichnites wilsoni</I> Logan, 1860, is redescribed from field investigations and specimens in various museums. <I>Climactichnites youngi</I> Todd, 1882, and <I>C. fosteri</I> Todd, 1882, are placed in synonymy. The ...

Three new species of the pinnipedimorph <I>Enaliarctos*</I> are described from the marine late Oligocene and early Miocene (Arikareean and Hemingfordian or early Barstovian correlatives) of coastal Oregon. <I>Enaliarctos ...

The history of taxonomy of the autochthonous genera of North American musk oxen<I> Bootherium, Symbos</I>, and <I>Gidleya</I> is reviewed. The bases upon which taxonomic judgments within the group have been made are ...

<I>Megaoryzomys curioi</I> is a thomasomyine, not an oryzomyine as previously believed. This rodent was originally described, from three bony fragments found in a cave on Isla Santa Cruz, Galápagos, as a new species of the ...

The early history of the Sciuridae is not well known, squirrels being generally poorly represented in the Tertiary fossil record. A nearly complete skeleton, recently discovered in early Oligocene deposits of Wyoming, ...

There are two fossil species of <I>Plesiogulo</I> in North America: <I>Plesiogulo marshalli</I>, to which most of the fossil material is herein referred, and P. <I>lindsayi</I>, new species. Both species are restricted to ...

A new ostracode genus <I>Oblitacythereis</I> containing two new subgenera (the nominotypical form and the older <I>Paleoblitacythereis</I>) containing two new species (<I>O.</I> (<I>O.</I>) <I>mediterranea</I> and <I>O.</I> ...

The Recent brachiopods described herein were collected during dredging operations of several research vessels: the United States R/V <I>Eltanin</I> (alias <I>Islas Orcadas</I> while on loan to Argentina) in Antarctica, in ...

Fossil seal remains from Richmond, Virginia, first reported by Wyman in 1850, and named <I>Phoca wymani</I> by Leidy in 1853, have been neglected and unjustifiably regarded as cetacean by most subsequent authors. Recently ...

Eighteen papers covering diverse aspects of avian paleontology from the earliest known bird to extinct species found in Indian middens are collected here to honor the 90th birthday of Alexander Wetmore. These are preceded ...